EP 1067985 A1 20010117 - AN APPARATUS FOR CONTROLLING THE GENERATION OF ELECTRIC FIELDS
Title (en)
AN APPARATUS FOR CONTROLLING THE GENERATION OF ELECTRIC FIELDS
Title (de)
GERÄT ZUR STEUERUNG DER GENERIERUNG ELEKTRISCHER FELDER
Title (fr)
APPAREIL PERMETTANT DE COMMANDER LA PRODUCTION DE CHAMPS ELECTRIQUES
Publication
Application
Priority
- SE 9900511 W 19990330
- SE 9801139 A 19980331
Abstract (en)
[origin: WO9952589A1] An apparatus (60) according to the present invention includes a voltage generator (1) for generating brief voltage pulses for the impression of voltage on electrodes (6, 15, 16, 24) included in the apparatus, and a measurement unit (50) which is coupled to the electrodes. These are designed to be secured at or inserted in tissue in a restricted region of a human or an animal in order therebetween to form electric fields in the tissue. The measurement unit (50) is disposed to determine the impedance between the electrodes which is substantially determined by the electric properties of the tissue which is located between the electrodes. A registration and calculator device (10) forms a control unit which, based on the impedance determined by the measurement unit, controls the output voltage of the voltage generator such that the electric field which is formed in the tissue always has a predetermined value. The treatment with the electric field realizes a perforation of cell membranes in the tissue which thereby permits the passage of substances fed to the body (e.g. cytostatic or genetic material).
IPC 1-7
IPC 8 full level
A61B 5/05 (2006.01); A61N 1/05 (2006.01); A61N 1/08 (2006.01); A61N 1/30 (2006.01); A61N 1/32 (2006.01)
CPC (source: EP US)
A61N 1/044 (2013.01 - EP US); A61N 1/325 (2013.01 - EP US); A61B 5/05 (2013.01 - EP US); A61N 1/0412 (2013.01 - EP US); A61N 1/0436 (2013.01 - EP US); A61N 1/0502 (2013.01 - EP US); A61N 1/323 (2013.01 - EP US); A61N 1/327 (2013.01 - EP US)
Citation (search report)
See references of WO 9952589A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9952589 A1 19991021; AT E309839 T1 20051215; AU 3633899 A 19991101; AU 741329 B2 20011129; CA 2325476 A1 19991021; DE 69928383 D1 20051222; DE 69928383 T2 20060803; EP 1067985 A1 20010117; EP 1067985 B1 20051116; JP 2002511320 A 20020416; SE 513814 C2 20001106; SE 9801139 D0 19980331; SE 9801139 L 19991001; US 2006015147 A1 20060119; US 2007118069 A1 20070524; US 2012029508 A1 20120202
DOCDB simple family (application)
SE 9900511 W 19990330; AT 99918408 T 19990330; AU 3633899 A 19990330; CA 2325476 A 19990330; DE 69928383 T 19990330; EP 99918408 A 19990330; JP 2000543197 A 19990330; SE 9801139 A 19980331; US 201113168350 A 20110624; US 20425805 A 20050815; US 65654907 A 20070122